您可以筛选template_include 并更换single-community.php 使用single-child-community.php.

实例

add_filter( \'template_include\', function( $template ) {

    if ( ! is_singular() )
        return $template; // not single

    if ( \'communities\' !== get_post_type() )
        return $template; // wrong post type

    if ( 0 === get_post()->post_parent )
        return $template; // not a child

    return locate_template( \'single-child-community.php\' );
});